The
Desiccators are made of Polypropylene and Polycarbonate. These autoclavable
vacuum desiccators can hold vaccum upto 740 mm. of Hg for 24 hrs. without any
greasing.
The top dome, moulded in rigid and transparent Polycarbonate, gives a crystal
clear view of the desiccator placed inside. The Knurled knob on the top provides
easy handling of the dome. The lower part is made of Polypropylene. An internal
groove is provided on the flange to hold a silicon rubber O-Ring.
The Polypropylene stopcock is fitted with a self lubricating PTFE plug. This
plug works three way i.e. vaccum creation, shutting off & vaccum releasing.
Each Desiccator is provided with a thick perforated Polypropylene disc with
a big hole in the centre for easy lifting. The tiny holes in the disc provide
air troughs & support to the dishes. However porcelain discs are advisable
in case of incandescent crucibles.